DE60038420D1 - Angle of rotation sensor with inductive coupling - Google Patents

Angle of rotation sensor with inductive coupling

Info

Publication number
DE60038420D1
DE60038420D1 DE60038420T DE60038420T DE60038420D1 DE 60038420 D1 DE60038420 D1 DE 60038420D1 DE 60038420 T DE60038420 T DE 60038420T DE 60038420 T DE60038420 T DE 60038420T DE 60038420 D1 DE60038420 D1 DE 60038420D1
Authority
DE
Germany
Prior art keywords
transmit
coupler
angular position
disk
pattern
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE60038420T
Other languages
German (de)
Other versions
DE60038420T2 (en
Inventor
Asad M Madni
Jim B Vuong
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEI Sensors and Systems Co LLC
Original Assignee
BEI Sensors and Systems Co LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BEI Sensors and Systems Co LLC filed Critical BEI Sensors and Systems Co LLC
Application granted granted Critical
Publication of DE60038420D1 publication Critical patent/DE60038420D1/en
Publication of DE60038420T2 publication Critical patent/DE60038420T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/204—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils
    • G01D5/2053—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the mutual induction between two or more coils by a movable non-ferromagnetic conductive element

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

A non-contact angular position sensor has juxtaposed transmit and receive disks with a coupler disk, carrying a conductive attenuating pattern interposed therebetween. A pattern of inductive coils, which completely encircle both the transmit and receive disks have their inductive coupling individually attenuated in accordance with the angular position of the symmetrical conductive pattern on the intermediate coupling disk. The transmit disk is dirven by a signal source which when received and demodulated by the receive coils and summed together provides a unique sinusoidal signal whose phase is indicative of the angular position of the intermediate coupler. The conductive pattern on the coupler is designed to provide a linear output. <IMAGE>
DE60038420T 1999-09-07 2000-01-27 Angle of rotation sensor with inductive coupling Expired - Fee Related DE60038420T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US390885 1995-02-14
US09/390,885 US6304076B1 (en) 1999-09-07 1999-09-07 Angular position sensor with inductive attenuating coupler

Publications (2)

Publication Number Publication Date
DE60038420D1 true DE60038420D1 (en) 2008-05-08
DE60038420T2 DE60038420T2 (en) 2009-04-09

Family

ID=23544354

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60038420T Expired - Fee Related DE60038420T2 (en) 1999-09-07 2000-01-27 Angle of rotation sensor with inductive coupling

Country Status (5)

Country Link
US (1) US6304076B1 (en)
EP (1) EP1083408B1 (en)
JP (2) JP3621872B2 (en)
AT (1) ATE390618T1 (en)
DE (1) DE60038420T2 (en)

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DE102012223037A1 (en) * 2012-12-13 2014-06-18 Dr. Johannes Heidenhain Gmbh Inductive position measuring device
US9897498B2 (en) * 2012-12-21 2018-02-20 Continental Teves Ag & Co. Ohg Method for detecting a torque applied to a shaft
CZ2013205A3 (en) 2013-03-22 2014-10-22 Rieter Cz S.R.O. Device for detecting position of rotating working means in active magnetic bearing
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CN104217836A (en) * 2014-09-04 2014-12-17 天津大学 Coil structure of angle transducer based on electromagnetic induction
RU2570232C1 (en) * 2014-09-09 2015-12-10 Открытое акционерное общество "Авангард" Induction angular position sensor
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US10415952B2 (en) 2016-10-28 2019-09-17 Microsemi Corporation Angular position sensor and associated method of use
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Also Published As

Publication number Publication date
EP1083408A2 (en) 2001-03-14
ATE390618T1 (en) 2008-04-15
DE60038420T2 (en) 2009-04-09
JP2004184426A (en) 2004-07-02
EP1083408A3 (en) 2003-05-07
EP1083408B1 (en) 2008-03-26
JP3621872B2 (en) 2005-02-16
US6304076B1 (en) 2001-10-16
JP2001082915A (en) 2001-03-30

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